CN106297671A - Display floater and scan drive circuit thereof - Google Patents
Display floater and scan drive circuit thereof Download PDFInfo
- Publication number
- CN106297671A CN106297671A CN201610884759.XA CN201610884759A CN106297671A CN 106297671 A CN106297671 A CN 106297671A CN 201610884759 A CN201610884759 A CN 201610884759A CN 106297671 A CN106297671 A CN 106297671A
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- China
- Prior art keywords
- time schedule
- level shifter
- schedule controller
- interface
- timing control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3266—Details of drivers for scan electrodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of display floater and scan drive circuit thereof.This scan drive circuit includes time schedule controller, is used for producing timing control signal；The level shifter of multiple cascades, is connected with time schedule controller, is used for receiving timing control signal, and exports scanning drive signal according to timing control signal；When 2D shows pattern, time schedule controller control level shift unit is sequentially output scanning drive signal；When 3D shows pattern, time schedule controller control level shift unit exports at least two scanning drive signal simultaneously.The present invention adjusts the level shifter output scanning drive signal of multiple cascade by time schedule controller, when 3D shows pattern, the level shifter that can control multiple cascade exports two scanning drive signal simultaneously or exports four scanning drive signal simultaneously, and then the range of application of expansion level shift unit.
Description
Technical field
The present invention relates to show actuation techniques field, particularly relate to a kind of display floater and scan drive circuit thereof.
Background technology
At present, the scan drive circuit of display floater produces scanning drive signal by level shifter.Prior art
Level shifter is sequentially output scanning drive signal, and therefore the quantity of the scanning drive signal of level shifter output is fixed, and
And the quantity of scanning drive signal cannot be adjusted according to different product.Additionally, have 3D (three dimensional, three
Dimension) display device of function can not meet support two scanning drive signal outputs simultaneously or four scanning drive signal simultaneously
Output, and then the range of application of cut-off level shift unit.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of display floater and scan drive circuit thereof, it is possible to extension electricity
The range of application of translational shifting device.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide a kind of scan drive circuit, its
Including:
Time schedule controller, is used for producing timing control signal；
The level shifter of multiple cascades, is connected with time schedule controller, is used for receiving timing control signal, and according to sequential
Control signal output scanning drive signal；
When 2D shows pattern, time schedule controller control level shift unit is sequentially output scanning drive signal；
When 3D shows pattern, time schedule controller control level shift unit exports at least two scanning drive signal simultaneously.
Wherein, the input of each level shifter is connected with time schedule controller, obtains timing control signal；Level shift
The outfan of device is connected with the scan line of display floater, exports at least two scanning drive signal.
Wherein, time schedule controller controls the level shifter of multiple cascade by SPI.
Wherein, time schedule controller includes that SDI interface, SDO interface and CS interface, SDI interface, SDO interface and CS connect
Mouth all with the connection of the input of level shifter.
Wherein, time schedule controller controls signal to the input of level shifter by CS interface transmission timing.
For solving above-mentioned technical problem, another technical solution used in the present invention is: provide a kind of display floater, its bag
Including multiple scan line and for driving the scan drive circuit of multiple scan line, scan drive circuit includes:
Time schedule controller, is used for producing timing control signal；
The level shifter of multiple cascades, is connected with time schedule controller, is used for receiving timing control signal, and according to sequential
Control signal output scanning drive signal, to drive multiple scan line；
When 2D shows pattern, time schedule controller control level shift unit is sequentially output scanning drive signal；
When 3D shows pattern, time schedule controller control level shift unit exports at least two scanning drive signal simultaneously.
Wherein, the input of each level shifter is connected with time schedule controller, obtains timing control signal；Level shift
The outfan of device connects with corresponding scan line, exports at least two scanning drive signal.
Wherein, time schedule controller controls the level shifter of multiple cascade by SPI.
Wherein, time schedule controller includes that SDI interface, SDO interface and CS interface, SDI interface, SDO interface and CS connect
Mouth all with the connection of the input of level shifter.
Wherein, time schedule controller controls signal to the input of level shifter by CS interface transmission timing.
The invention has the beneficial effects as follows: be different from the situation of prior art, the scan drive circuit of the present invention passes through sequential
Controller produces timing control signal；The level shifter of multiple cascades, is connected with time schedule controller, is used for receiving sequencing contro
Signal, and export scanning drive signal according to timing control signal；When 2D shows pattern, time schedule controller control level shifts
Device is sequentially output scanning drive signal；When 3D shows pattern, time schedule controller control level shift unit exports at least two simultaneously
Individual scanning drive signal；The present invention can adjust the level shifter output turntable driving letter of multiple cascade by time schedule controller
Number, when 3D shows pattern, it is possible to control the level shifter of multiple cascade export simultaneously two scanning drive signal or with
Time four scanning drive signal of output, and then the range of application of expansion level shift unit.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention, for
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.Wherein:
Fig. 1 is the structural representation of the scan drive circuit of one embodiment of the invention；
Fig. 2 is the sequential chart that in Fig. 1, the level shifter of multiple cascades shows pattern at 2D；
Fig. 3 is the sequential chart that in Fig. 1, the level shifter of multiple cascades exports two scanning drive signal at the same time；
Fig. 4 is the sequential chart that in Fig. 1, the level shifter of multiple cascades exports four scanning drive signal at the same time；
Fig. 5 is the structural representation of the display floater of one embodiment of the invention；
Fig. 6 is the structural representation of the flat display apparatus of one embodiment of the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiment wholely.Based on this
Embodiment in invention, it is every other that those of ordinary skill in the art are obtained under not making performing creative labour premise
Embodiment, broadly falls into the scope of protection of the invention.
Shown in Figure 1, Fig. 1 is the structural representation of the scan drive circuit of one embodiment of the invention.Such as Fig. 1 institute
Showing, the scan drive circuit 10 disclosed in the present embodiment is for driving scan line Gn of display floater 20, this scan drive circuit
10 level shifters 12 including time schedule controller 11 and multiple cascade.
Wherein, time schedule controller 11 is used for producing timing control signal CS；The level shifter 12 of multiple cascades and sequential
Controller 10 connects, and is used for receiving timing control signal CS, and exports scanning drive signal CKVn according to timing control signal CS；
Scanning drive signal CKVn is for driving scan line Gn of display floater 20.
Wherein, the input 121 of each level shifter 12 is connected with time schedule controller 11, obtains timing control signal
CS.The outfan 122 of each level shifter 12 is connected with scan line Gn of display floater 20, exports at least two turntable driving
Signal CKVn-1, CKVn.Such as, the outfan 122 of level shifter 12 can export scanning drive signal CKV1 and scanning is driven
Dynamic signal CKV2, as shown in Figure 1.In other embodiments, the outfan 122 of level shifter 12 can export four scannings and drives
Dynamic signal CKV1, CKV2, CKV3 and CKV4.
Time schedule controller 11 controls multiple by SPI (Serial Peripheral Interface, Serial Peripheral Interface (SPI))
The level shifter 12 of cascade, wherein SPI is the communication bus of a kind of high speed, full duplex, synchronization, and at the pin of chip
On only take up four lines, saved the pin of chip, be saving space in the layout of PCB, it is provided that convenient simultaneously.
And the time schedule controller 11 of the present embodiment uses the transmission method of one-way transmission, therefore time schedule controller 11 includes
SDI (data input) interface, SDO (data output) interface and CS interface, wherein the SDI interface of time schedule controller 11, SDO connect
Mouthful and CS interface all with the connection of the input 121 of level shifter 12.
Time schedule controller 11 can be by the input of CS interface transmission timing control signal CS to multiple level shifters 12
121, so that the level shifter 12 of multiple cascade exports scanning drive signal CKVn according to timing control signal.
When 2D shows pattern, time schedule controller 12 controls the level shifter of multiple cascades by timing control signal CS
12 are sequentially output scanning drive signal CKVn, and the outfan 122 of the level shifter 12 of the most multiple cascades is sequentially output scanning and drives
Dynamic signal CKV1, scanning drive signal CKV2 ... and scanning drive signal CKVn, sequential chart as shown in Figure 2.Now, many
The level shifter 12 of individual cascade drives scan line Gn of display floater 20 successively.
When 3D shows pattern, time schedule controller 12 controls the level shifter of multiple cascades by timing control signal CS
12 export at least two scanning drive signal CKVn-1, CKVn simultaneously.Sequential chart as shown in Figure 3, the level of multiple cascades moves
The outfan 122 of position device 12 exports scanning drive signal CKV1 and scanning drive signal CKV2 the most simultaneously, exports scanning simultaneously
Drive signal CKV3 and scanning drive signal CKV4 ..., output scanning drive signal CKVn and scanning drive signal simultaneously
CKVn+1。
In other embodiments, time schedule controller 12 controls the level shifter 12 of multiple cascades by timing control signal CS
Four scanning drive signal CKVn-3, CKVn-2, CKVn-1 and CKVn can be exported simultaneously.Sequential chart as shown in Figure 4 is many
The outfan 122 of the level shifter 12 of individual cascade export the most simultaneously scanning drive signal CKV1, scanning drive signal CKV2,
Scanning drive signal CKV3 and scanning drive signal CKV4 ..., output scanning drive signal CKVn-3, turntable driving letter simultaneously
Number CKVn-2, scanning drive signal CKVn-1 and scanning drive signal CKVn.
Additionally, the level shifter 12 that time schedule controller 12 controls multiple cascades by timing control signal CS exports simultaneously
Scanning drive signal CKVn of other quantity, the level shifter 12 of the most multiple cascades exports 6 scanning drive signal simultaneously
CKVn, or the level shifter 12 of multiple cascade exports 8 scanning drive signal CKVn simultaneously.
The scan drive circuit 10 of the present embodiment can adjust the level shifter of multiple cascade by time schedule controller 11
12 output scanning drive signal CKVn, when 3D shows pattern, it is possible to the level shifter 12 controlling multiple cascade exports simultaneously
Two scanning drive signal or simultaneously four scanning drive signal of output, and then the range of application of expansion level shift unit 12,
Shorten the development time of product.
As it is shown in figure 5, the structural representation of the display floater of one embodiment of the invention.As it is shown in figure 5, display floater 50 wraps
Include multiple scan line Gn and for driving the scan drive circuit 10 of multiple scan line Gn, plurality of scan line Gn and display surface
Multiple data wire Dn of plate 50 are arranged alternately.The scan drive circuit 10 scan drive circuit disclosed in above-described embodiment,
This repeats no more.
As shown in Figure 6, the structural representation of the flat display apparatus of one embodiment of the invention.As shown in Figure 6, plane shows
Device includes aforesaid scan drive circuit 10, and scan drive circuit is arranged on the both sides of flat display apparatus.Plane display dress
Other devices and function in putting are identical with the device of existing flat display apparatus and function, do not repeat them here.Wherein, plane
Display device is LCD or OLED.
In sum, the scan drive circuit of the present invention produces timing control signal by time schedule controller；Multiple cascades
Level shifter, be connected with time schedule controller, be used for receiving timing control signal, and according to timing control signal output scanning
Drive signal；When 2D shows pattern, time schedule controller control level shift unit is sequentially output scanning drive signal；Show at 3D
During pattern, time schedule controller control level shift unit exports at least two scanning drive signal simultaneously；When the present invention can pass through
Sequence controller adjusts the level shifter output scanning drive signal of multiple cascades, when 3D shows pattern, it is possible to control multiple
The level shifter of cascade exports two scanning drive signal simultaneously or exports four scanning drive signal simultaneously, and then extension
The range of application of level shifter.
The foregoing is only embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilization is originally
Equivalent structure or equivalence flow process that description of the invention and accompanying drawing content are made convert, or are directly or indirectly used in what other were correlated with
Technical field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. a scan drive circuit, it is characterised in that described scan drive circuit includes:
Time schedule controller, is used for producing timing control signal；
The level shifter of multiple cascades, is connected with described time schedule controller, is used for receiving described timing control signal, and according to
Described timing control signal output scanning drive signal；
When 2D shows pattern, described time schedule controller controls described level shifter and is sequentially output described scanning drive signal；
When 3D shows pattern, the described time schedule controller described level shifter of control exports scanning described at least two simultaneously and drives
Dynamic signal.
Scan drive circuit the most according to claim 1, it is characterised in that the input of each described level shifter with
Described time schedule controller connects, and obtains described timing control signal；The outfan of described level shifter is swept with display floater
Retouch line to connect, scanning drive signal described in output at least two.
Scan drive circuit the most according to claim 2, it is characterised in that described time schedule controller controls institute by SPI
State the level shifter of multiple cascade.
Scan drive circuit the most according to claim 3, it is characterised in that described time schedule controller include SDI interface,
SDO interface and CS interface, described SDI interface, SDO interface and CS interface all with the company of the input of described level shifter
Connect.
Scan drive circuit the most according to claim 4, it is characterised in that described time schedule controller passes through described CS interface
Send the input of described timing control signal extremely described level shifter.
6. a display floater, it is characterised in that described display floater includes multiple scan line and for driving the plurality of sweeping
Retouching the scan drive circuit of line, described scan drive circuit includes:
Time schedule controller, is used for producing timing control signal；
The level shifter of multiple cascades, is connected with described time schedule controller, is used for receiving described timing control signal, and according to
Described timing control signal output scanning drive signal, to drive the plurality of scan line；
When 2D shows pattern, described time schedule controller controls described level shifter and is sequentially output described scanning drive signal；
When 3D shows pattern, the described time schedule controller described level shifter of control exports scanning described at least two simultaneously and drives
Dynamic signal.
Display floater the most according to claim 6, it is characterised in that the input of each described level shifter is with described
Time schedule controller connects, and obtains described timing control signal；The outfan of described level shifter connects with corresponding scan line,
Scanning drive signal described in output at least two.
Display floater the most according to claim 7, it is characterised in that described time schedule controller controls described many by SPI
The level shifter of individual cascade.
Display floater the most according to claim 8, it is characterised in that described time schedule controller includes that SDI interface, SDO connect
Mouthful and CS interface, described SDI interface, SDO interface and CS interface all with the connection of the input of described level shifter.
Display floater the most according to claim 9, it is characterised in that described time schedule controller is sent out by described CS interface
Send described timing control signal to the input of described level shifter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884759.XA CN106297671B (en) | 2016-10-10 | 2016-10-10 | Display panel and scanning drive circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884759.XA CN106297671B (en) | 2016-10-10 | 2016-10-10 | Display panel and scanning drive circuit thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106297671A true CN106297671A (en) | 2017-01-04 |
| CN106297671B CN106297671B (en) | 2020-02-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610884759.XA Active CN106297671B (en) | 2016-10-10 | 2016-10-10 | Display panel and scanning drive circuit thereof |
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| CN (1) | CN106297671B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107633828A (en) * | 2017-09-22 | 2018-01-26 | 深圳市华星光电技术有限公司 | Level shift circuit |
| WO2021143198A1 (en) * | 2020-01-17 | 2021-07-22 | Tcl华星光电技术有限公司 | Drive circuit and display panel using same |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106297671B (en) | 2020-02-07 |
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Address after: No.9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee after: TCL Huaxing Photoelectric Technology Co.,Ltd. Address before: No.9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |